Keyboard



FIG. 1 is a perspective view of a keyboard showing the new design, depicting the front, top and one side thereof;

FIG. 2 is a top plan view of the keyboard;

FIG. 3 is an elevation view, showing the front of the keyboard;

FIG. 4 is an elevation view, showing the rear of the keyboard;

FIG. 5 is an elevation view, showing one side of the keyboard;

FIG. 6 is an elevation view, showing the other side of the keyboard; and,

FIG. 7 is a bottom plan view of the keyboard. 

The ornamental design for a keyboard, as shown and described. 